CN109819722A - A kind of adjustable duplicate rows self-locking plough of penetrating angle - Google Patents
A kind of adjustable duplicate rows self-locking plough of penetrating angle Download PDFInfo
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- CN109819722A CN109819722A CN201910083503.2A CN201910083503A CN109819722A CN 109819722 A CN109819722 A CN 109819722A CN 201910083503 A CN201910083503 A CN 201910083503A CN 109819722 A CN109819722 A CN 109819722A
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Abstract
A kind of adjustable duplicate rows self-locking plough category agricultural machinery technological field of penetrating angle, left and right penetrating angle adjusts component and is symmetrical arranged about frame central line in the present invention, the two keyways key connection of two sections of axis I in the centre bore and axis of two displacement wheels；II interference of left and right section axis of two bearings, I inner ring and axis connects, and two bearings, I outer ring is connect with III interference of centre bore of left baffle in rack；Two connecting rods and two springs of left and right penetrating angle position-limit mechanism are located in the left and right bracket of rack, and the top gear teeth for adjusting two displacement wheels in component with left and right penetrating angle of the two of left and right penetrating angle position-limit mechanism are slidably connected；Two nuts are threadedly coupled with axis both ends；The present invention can facilitate adjusting penetrating angle, and the angular deflection wheel that buries can be self-locking, is highly resistant to soil resistance variation bring shock and vibration, plough is made to remain the stabilization of trench digging posture in operation process, plough two sides stress equalization, the fatigue load and unbalanced moments of complete machine are small.
Description
Technical field
The invention belongs to agricultural machinery technological fields, and in particular to a kind of adjustable duplicate rows self-locking plough of penetrating angle.
Background technique
Plough is the critical component of seeding machinery, fertilizer machinery, is mostly installed at seeder front, in sowing, fertilising
Play the role of outputing the kind ditch for meeting agriculture requirement, fertile ditch in the process, creates good kind of bed environment for seed.Existing trench digging
Device is broadly divided into acute angle formula plough, obtuse angle formula plough according to the difference of penetrating angle, can divide according to the difference of motion mode
For slidingtype plough, roller plough, the plough of these types keeps installation site to fix during ditching operation
Constant, penetrating angle and clearance angle of burying in operation remain unchanged.Due to the different agriculture requirement of Different Crop, different soil
Under plough job state it is different, there are problems following prominent for existing plough: when seeder under different terrain conditions into
When row operation, the ditch depth that cannot meet agriculture requirement, the kind ditch of furrow width may be outputed.The growth of severe jamming seed and hair
It educates.And the adjustment of trench digging state cannot be carried out according to actual landform, edaphic condition during real time job.
The structure and performance status for taking a broad view of above-mentioned plough, are badly in need of a kind of to be wanted according to soil conditions, crop-planting agronomy
It asks and carries out penetrating angle adjustable plough at any time.
Summary of the invention
The object of the present invention is to provide one kind can overcome the self-locking plough of the adjustable double-row of drawbacks described above, penetrating angle.
The present invention adjusts component A, left penetrating angle position-limit mechanism B, axis C, rack D, right penetrating angle by left penetrating angle and limits
Mechanism E, right penetrating angle adjust component F, nut I 1, bearing I 2, bearing II 3 and nut II 4 and form, wherein left penetrating angle adjusting group
The keyway I 7 of left section of axis I 6 is keyed in I i of centre bore and axis C of displacement wheel 21 in part A；Left penetrating angle adjusts the card of component A
Ring 22 is fixed in the annular groove I 8 of axis C；Right penetrating angle adjusts right section of axis I 14 in the centre bore II and axis C for conjugate in component F wheel
Keyway II 13 be keyed；The snap ring that right penetrating angle adjusts component F is fixed in the annular groove II 12 of axis C；I 2 inner ring of bearing is in
Left section of II 9 interference of axis of axis C connects, and I 2 outer ring of bearing is connect with the III p interference of centre bore of right baffle-plate 24 in rack D；Bearing II 3
Inner ring is connect with right section of II 11 interference of axis of axis C, and II 3 outer ring of bearing and the II u interference of centre bore of right shell body 33 in rack D connect
It connects；The connecting rod l and spring m of left penetrating angle position-limit mechanism B is located in the left support 26 of rack D, the top of left penetrating angle position-limit mechanism B
The gear teeth that sharp o adjusts displacement wheel 21 in component A with left penetrating angle are slidably connected；The connecting rod and spring of right penetrating angle position-limit mechanism E
In the right support of rack D, the top and right penetrating angle of right penetrating angle position-limit mechanism E adjusts the gear teeth that wheel is conjugated in component F
It is slidably connected；Nut I 1 is threadedly coupled with the left end axis C；Nut II 4 is threadedly coupled with axis C right end.
The left penetrating angle adjusts component A and right penetrating angle adjusts the component F structure same direction on the contrary, by plough
16, bolt I 17, bolt II 18, positioning disk 19, handle I 20, displacement wheel 21, snap ring 22 form, wherein in the disk of positioning disk 19
Equipped with I d of centre bore, bolt hole to c, the disk side of positioning disk 19 is equipped with upper screwed hole e and lower threaded hole f；On the wheel face of displacement wheel 7
III h of keyway is equipped with to g, II i of centre bore equipped with II i of centre bore, threaded hole, a group j is toothed around on the circumference of displacement wheel 7, takes turns
Tooth group j is made of the 14-20 gear teeth, the tooth profile curve equation formula of the gear teeth are as follows:
X′t=cos (t360)+cos (2t360)
y′t=4sin (t360) 2+sin (t360) 2
(0≤t≤π)
Positioning disk 19 is affixed through bolt I 17 and bolt II 18 and displacement wheel 21；The upper spiral shell of I 20 lower end of handle and positioning disk 5
Pit e is threadedly coupled；16 upper end of plough is threadedly coupled with the lower threaded hole f of positioning disk 5.
The left penetrating angle position-limit mechanism B, the structure of right penetrating angle position-limit mechanism E are identical, by II k of handle,
Connecting rod l, spring m, pin shaft n and top o composition, wherein affixed II k of handle in the upper end connecting rod l, the lower end connecting rod l are affixed top through screw thread
O, spring m are placed on connecting rod l；The top lower end o is hemisphere face, and the radius of a ball is cone between 1.5~3mm, plane γ-λ and plane σ-τ
Curved surface made of shape helix envelope, coniform spiral bottom radius of circle r=5~6.5mm, screw pitch p=3~5mm, circle number m=6~9,
Equation are as follows:
θ=360t；xt=6.5cos (6 θ)；yt=6.5sin (6 θ)；zt(t and θ are=18t (π of 0≤t≤2)
Parameter).
The axis C is by left section of axis I 6 tactic from left to right, left section of axis II 9, middle section axis 10, right section of axis II 11
It is formed with right section of axis I 14, wherein the left section of nearly right end of axis I 6 is equipped with keyway I 7, left section of I 6 left end of axis is equipped with screw thread I 5；Right section of axis I 14
Nearly left end is equipped with keyway II 13, and right section of I 14 right end of axis is equipped with screw thread II 15；Left section of axis I 6 is equipped with ring with left section of II 9 junction of axis
Slot I 8；Right section of axis I 14 is equipped with annular groove II 12 with right section of II 11 junction of axis.
The rack D is by shell 23, right baffle-plate 24, bolt III 25, left support 26, bolt IV 27, transverse tube 28, vertical plate
29, bolt V 30, right support 31, bolt VI 32, right shell body 33 form, and wherein shell 23 is torus, 23 left end of shell top
Equipped with I q of hole, II s of hole is equipped with above 23 right end of shell；Right baffle-plate 24 is equipped with III p of centre bore, and right shell body 33 is equipped with centre bore
Ⅱu；Right baffle-plate 24 is fixed in the nearly left end of shell 23, and right shell body 33 is fixed in the nearly right end of shell 23；Left support 26 is equipped with mesoporous I
R, right support 31 is equipped with II t of mesoporous；Left support 26 is fixed in right above 23 left end of shell through bolt III 25, bolt IV 27, right
Bracket 31 is fixed in right above 23 right end of shell through bolt V 30, bolt VI 32；Vertical plate 29 is being fixed in shell 23 just through transverse tube 28
Rear.
The course of work of the invention is as follows:
Complete machine is articulated on tractor by hanger bracket, and when unit advances, plough main body carries out ditching operation, works as needs
When penetrating angle is adjusted, tractor stops, and at this time gently mentions left penetrating angle position-limit mechanism B, right penetrating angle position-limit mechanism E
It rises, stirs plough penetrating angle regulation handle I 20 to realize the variation of penetrating angle, often stir one to bury on angular deflection wheel
Tooth, penetrating angle can change 24 °.In the state of ditching operation, penetrating angle position-limit mechanism B is in spring force, unique penetrating angle
Displacement wheel gear teeth curve and the lower end penetrating angle position-limit mechanism B can resist under the mutual cooperation of top o of greater impact power, real
Stabilization under existing plough job state.Therefore, whenever needing that penetrating angle is adjusted, all repeatable above process.
The angular deflection wheel that buries, which has, to be rotated in the forward direction, the performance of reverse self-locking.When limit spring regulation handle is raised, enter
Native angular deflection wheel can rotate, and angular deflection wheel and bury angular deflection wheel positioning disc and plough is rigid connection due to burying
Together, therefore by stirring plough penetrating angle regulation handle the change of plough penetrating angle may be implemented, penetrating angle becomes
Position wheel one tooth of every rotation, plough penetrating angle accordingly rotate 18 °~36 °, and the number of teeth for increasing the angular deflection wheel that buries may be implemented
The higher variation precision of plough penetrating angle.When limit spring regulation handle is in the state of normal, spring force can make its bottom
Portion's coniform spiral enveloping surface, which is compressed tightly against, to bury on angular deflection wheel, during unit operation forward, in soil counter-force
Effect is lower to form an opposing torque, and plough can be made to keep stable job state.
The beneficial effects of the present invention are:
1. realizing that the unidirectional penetrating angle of plough is adjusted using the angular deflection turbine structure that buries, revesal is self-locking, makes penetrating angle
Adjusting it is more convenient and rapid, when unit is without operation, plough can be packed up, in angular deflection wheel self-locking of burying
Under will not move.
2. penetrating angle position-limit mechanism is cooperated using the unique angular deflection wheel gear teeth curved surface that buries with cone spiral enveloping surface,
Soil resistance variation bring shock and vibration are highly resistant to, plough is made to remain trench digging posture in operation process
Stablize.
3. two sides are buried, angular deflection wheel positioning disc is mounted on same root main shaft, and two plough penetrating angles can be made to begin
It is consistent eventually, guarantees the stress balance of unit two sides during ditching operation, to reduce the fatigue load and injustice of complete machine
Weigh torque.
Detailed description of the invention
Fig. 1 is the main view of the adjustable duplicate rows self-locking plough of penetrating angle
Fig. 2 is the top view of the adjustable duplicate rows self-locking plough of penetrating angle
Fig. 3 is the structural schematic diagram of main shaft C
Fig. 4 is the structural schematic diagram that left penetrating angle adjusts component A
Fig. 5 is the axonometric drawing of positioning disk 19
Fig. 6 is the structural schematic diagram of displacement wheel 7
Fig. 7 is displacement wheel 7 curves description figure
Fig. 8 is the main view of left penetrating angle position-limit mechanism B, right penetrating angle position-limit mechanism E
Fig. 9 is the top o schematic diagram of left penetrating angle position-limit mechanism B, right penetrating angle position-limit mechanism E
Figure 10 is the axonometric drawing of rack D
Wherein: the left penetrating angle of A. adjusts the right penetrating angle limit of the left penetrating angle position-limit mechanism C. axis D. rack E. of component B.
The position right penetrating angle of mechanism F. adjusts 1. nut of component, I 2. bearing, I 3. bearing, II 4. nut, II 5. screw thread, I 6. left sections of axis I
7. II 14. right sections of II 13. keyway of II 10. middle section axis, 11. right sections of axis, II 12. annular groove of I 8. annular groove of keyway, I 9. left sections of axis
II 19. positioning disk of axis I 15. screw thread, II 16. plough, 17. bolt, I 18. bolt, 20. handle I 21. displacement wheel, 22. card
29. vertical plate of ring 23. shell, 24. right baffle-plate, 25. bolt, III 26. left support, 27. bolt, IV 28. transverse tube, 30. bolt V
31. 32. bolt of right support, VI 33. right shell body c. bolt hole is to threaded hole g. spiral shell under I e. upper screwed hole f. of d. centre bore
In III i. centre bore of pitpair h. keyway, II j. gear teeth group k. handle, the II top p. of l. connecting rod m. spring n. pin shaft o.
III hole q. of heart hole, I r. mesoporous, I hole s., II t. mesoporous, II u. centre bore
Specific embodiment
As depicted in figs. 1 and 2, the present invention adjusts component A, left penetrating angle position-limit mechanism B, axis C, rack by left penetrating angle
D, right penetrating angle position-limit mechanism E, right penetrating angle adjust component F, nut I 1, bearing I 2, bearing II 3 and nut II 4 and form, wherein
The keyway I 7 that left penetrating angle adjusts left section of axis I 6 in I i of centre bore and axis C of displacement wheel 21 in component A is keyed；Left penetrating angle
The snap ring 22 for adjusting component A is fixed in the annular groove I 8 of axis C；Right penetrating angle adjusts the centre bore II that wheel is conjugated in component F in
The keyway II 13 of right section of axis I 14 is keyed in axis C；The snap ring that right penetrating angle adjusts component F is fixed in the annular groove II 12 of axis C；
I 2 inner ring of bearing is connect with left section of II 9 interference of axis of axis C, the III p mistake of centre bore of I 2 outer ring of bearing and right baffle-plate 24 in rack D
It is full of connection；II 3 inner ring of bearing is connect with right section of II 11 interference of axis of axis C, II 3 outer ring of bearing and right shell body 33 in rack D
II u interference of centre bore connection；The connecting rod l and spring m of left penetrating angle position-limit mechanism B is located in the left support 26 of rack D, and a left side is buried
The gear teeth that the top o of angle position-limit mechanism B adjusts displacement wheel 21 in component A with left penetrating angle are slidably connected；Right penetrating angle position restrainer
The connecting rod and spring of structure E is located in the right support of rack D, and the top and right penetrating angle of right penetrating angle position-limit mechanism E adjusts component F
The gear teeth of middle displacement wheel are slidably connected；Nut I 1 is threadedly coupled with the left end axis C；Nut II 4 is threadedly coupled with axis C right end.
As shown in Figure 1, Figure 2, shown in Fig. 4 to Fig. 7, the left penetrating angle adjusts component A and right penetrating angle adjusts component F structure
The same direction is on the contrary, by plough 16, bolt I 17, bolt II 18, positioning disk 19, handle I 20, displacement wheel 21,22 groups of snap ring
At wherein the disk of positioning disk 19 is equipped with I d of centre bore, bolt hole to c, and the disk side of positioning disk 19 is equipped with upper screwed hole e under
Threaded hole f；The wheel face of displacement wheel 7 is equipped with II i of centre bore, threaded hole and is equipped with III h of keyway, displacement wheel 7 to g, II i of centre bore
Circumference on be toothed around a group j, gear teeth group j is made of the 14-20 gear teeth, the tooth profile curve equation formula of the gear teeth are as follows:
X′t=cos (t360)+cos (2t360)
y′t=4sin (t360) 2+sin (t360) 2
(0≤t≤π)
Positioning disk 19 is affixed through bolt I 17 and bolt II 18 and displacement wheel 21；The upper spiral shell of I 20 lower end of handle and positioning disk 5
Pit e is threadedly coupled；16 upper end of plough is threadedly coupled with the lower threaded hole f of positioning disk 5.
As shown in Figure 1, Figure 2, shown in Fig. 8, Fig. 9, the structure of the left penetrating angle position-limit mechanism B, right penetrating angle position-limit mechanism E
It is identical, it is made of II k of handle, connecting rod l, spring m, pin shaft n and top o, wherein affixed II k of handle in the upper end connecting rod l, even
The lower end bar l is placed on connecting rod l through the affixed top o of screw thread, spring m；The top lower end o is hemisphere face, and the radius of a ball is 1.5~3mm, plane
It is curved surface made of coniform spiral line envelope, coniform spiral bottom radius of circle r=5~6.5mm, screw pitch p between γ-λ and plane σ-τ
=3~5mm, circle number m=6~9, equation are as follows:
θ=360t；xt=6.5cos (6 θ)；yt=6.5sin (6 θ)；zt(t and θ are=18t (π of 0≤t≤2)
Parameter).
As shown in figure 3, the axis C by left section of axis I 6 tactic from left to right, left section of axis II 9, middle section axis 10,
Right section of axis II 11 and right section of axis I 14 form, wherein the left section of nearly right end of axis I 6 is equipped with keyway I 7, left section of I 6 left end of axis is equipped with screw thread I
5；The right section of nearly left end of axis I 14 is equipped with keyway II 13, and right section of I 14 right end of axis is equipped with screw thread II 15；Left section of axis I 6 connects with left section of axis II 9
It meets place and is equipped with annular groove I 8；Right section of axis I 14 is equipped with annular groove II 12 with right section of II 11 junction of axis.
As shown in Figure 10, the rack D is by shell 23, right baffle-plate 24, bolt III 25, left support 26, bolt IV 27, cross
Pipe 28, vertical plate 29, bolt V 30, right support 31, bolt VI 32, right shell body 33 form, and wherein shell 23 is torus, shell 23
It is equipped with I q of hole above left end, is equipped with II s of hole above 23 right end of shell；Right baffle-plate 24 is equipped with III p of centre bore, sets in right shell body 33
There is II u of centre bore；Right baffle-plate 24 is fixed in the nearly left end of shell 23, and right shell body 33 is fixed in the nearly right end of shell 23；On left support 26
II t of mesoporous is equipped with equipped with I r of mesoporous, right support 31；Left support 26 is fixed in 23 left end of shell through bolt III 25, bolt IV 27
Surface, right support 31 are fixed in right above 23 right end of shell through bolt V 30, bolt VI 32；Vertical plate 29 is fixed in through transverse tube 28
23 dead astern of shell.
Claims (5)
1. a kind of adjustable duplicate rows self-locking plough of penetrating angle, it is characterised in that: adjust component (A) by left penetrating angle, a left side enters
Native angle position-limit mechanism (B), axis (C), rack (D), right penetrating angle position-limit mechanism (E), right penetrating angle adjust component (F), nut I
(1), bearing I (2), bearing II (3) and nut II (4) composition, wherein left penetrating angle is adjusted in component (A) in displacement wheel (21)
Heart hole I (i) and the keyway I (7) of left section of axis I (6) in axis (C) are keyed；The snap ring (22) that left penetrating angle adjusts component (A) is solid
It is connected to the annular groove I (8) of axis (C)；Right penetrating angle adjusts the centre bore II of displacement wheel and right section of axis I in axis (C) in component (F)
(14) keyway II (13) key connection；The snap ring that right penetrating angle adjusts component (F) is fixed in the annular groove II (12) of axis (C)；Axis
It holds I (2) inner ring to connect with left section of axis II (9) interference of axis (C), bearing I (2) outer ring and right baffle-plate (24) in rack (D)
Centre bore III (p) interference connection；Bearing II (3) inner ring is connect with right section of axis II (11) interference of axis (C), and bearing II (3) is outside
Circle is connect with centre bore II (u) interference of right shell body (33) in rack (D)；The connecting rod (l) and bullet of left penetrating angle position-limit mechanism (B)
Spring (m) is located in the left support (26) of rack (D), and top (o) and left penetrating angle of left penetrating angle position-limit mechanism (B) adjust component
(A) gear teeth of displacement wheel (21) are slidably connected in；The connecting rod and spring of right penetrating angle position-limit mechanism (E) are located at the right side of rack (D)
In bracket, the gear teeth that the top and right penetrating angle of right penetrating angle position-limit mechanism (E) adjusts displacement wheel in component (F) are slidably connected；
Nut I (1) is threadedly coupled with the left end axis (C)；Nut II (4) is threadedly coupled with axis (C) right end.
2. the adjustable duplicate rows self-locking plough of penetrating angle according to claim 1, which is characterized in that the left penetrating angle
It adjusts component (A) and right penetrating angle adjusts component (F) the structure same direction on the contrary, by plough (16), bolt I (17), spiral shell
Bolt II (18), positioning disk (19), handle I (20), displacement wheel (21), snap ring (22) composition, wherein in the disk of positioning disk (19)
Equipped with centre bore I (d), bolt hole to (c), the disk side of positioning disk (19) is equipped with upper screwed hole (e) and lower threaded hole (f)；Displacement
The wheel face for taking turns (7) is equipped with centre bore II (i), threaded hole to (g), and centre bore II (i) is equipped with keyway III (h), displacement wheel (7)
Circumference on be toothed around group (j), gear teeth group (j) is made of the 14-20 gear teeth, the tooth profile curve equation formula of the gear teeth are as follows:
X′t=cos (t360)+cos (2t360)
y′t=4sin (t360) 2+sin (t360) 2
(0≤t≤π)
Positioning disk (19) is affixed through bolt I (17) and bolt II (18) and displacement wheel (21)；Handle I (20) lower end and positioning disk
(5) upper screwed hole (e) is threadedly coupled；Plough (16) upper end is threadedly coupled with the lower threaded hole (f) of positioning disk (5).
3. the adjustable duplicate rows self-locking plough of penetrating angle according to claim 1, it is characterised in that: the left penetrating angle
Position-limit mechanism (B), the structure of right penetrating angle position-limit mechanism (E) are identical, by handle II (k), connecting rod (l), spring (m),
Pin shaft (n) and top (o) are formed, and wherein the affixed handle II (k) in connecting rod (l) upper end, connecting rod (l) lower end are affixed top through screw thread
(o), spring (m) is placed on connecting rod (l)；The lower end top (o) is hemisphere face, and the radius of a ball is 1.5~3mm, plane γ-λ and plane σ-τ
Between be curved surface made of coniform spiral line envelope, coniform spiral bottom radius of circle r=5~6.5mm, screw pitch p=3~5mm, circle number
M=6~9, equation are as follows:
θ=360t；xt=6.5cos (6 θ)；yt=6.5sin (6 θ)；zt(t and θ are ginseng to=18t (π of 0≤t≤2)
Number).
4. the adjustable duplicate rows self-locking plough of penetrating angle according to claim 1, it is characterised in that: the axis (C)
By left section of axis I (6) tactic from left to right, left section of axis II (9), middle section axis (10), right section of axis II (11) and right section of axis I
(14) it forms, wherein the nearly right end of left section of axis I (6) is equipped with keyway I (7), left section of axis I (6) left end is equipped with screw thread I (5)；Right section of axis I
(14) nearly left end is equipped with keyway II (13), and right section of axis I (14) right end is equipped with screw thread II (15)；Left section of axis I (6) and left section of axis II
(9) junction is equipped with annular groove I (8)；Right section of axis I (14) is equipped with annular groove II (12) with right section of axis II (11) junction.
5. the adjustable duplicate rows self-locking plough of penetrating angle according to claim 1, which is characterized in that the rack (D)
By shell (23), right baffle-plate (24), bolt III (25), left support (26), bolt IV (27), transverse tube (28), vertical plate (29), bolt
V (30), right support (31), bolt VI (32), right shell body (33) composition, wherein shell (23) is torus, shell (23) left end
Top is equipped with hole I (q), is equipped with hole II (s) above shell (23) right end；Right baffle-plate (24) is equipped with centre bore III (p), right shell body
(33) it is equipped with centre bore II (u)；Right baffle-plate (24) is fixed in the nearly left end of shell (23), and right shell body (33) is fixed in shell (23)
Nearly right end；Left support (26) is equipped with mesoporous I (r), right support (31) is equipped with mesoporous II (t)；Left support (26) is through bolt III
(25), bolt IV (27) is fixed in right above shell (23) left end, and right support (31) is affixed through bolt V (30), bolt VI (32)
Right above shell (23) right end；Vertical plate (29) is fixed in shell (23) dead astern through transverse tube (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083503.2A CN109819722B (en) | 2019-01-29 | 2019-01-29 | Double-row self-locking furrow opener with adjustable soil-entering angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083503.2A CN109819722B (en) | 2019-01-29 | 2019-01-29 | Double-row self-locking furrow opener with adjustable soil-entering angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109819722A true CN109819722A (en) | 2019-05-31 |
| CN109819722B CN109819722B (en) | 2021-08-31 |
Family
ID=66862747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910083503.2A Expired - Fee Related CN109819722B (en) | 2019-01-29 | 2019-01-29 | Double-row self-locking furrow opener with adjustable soil-entering angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109819722B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206932607U (en) * | 2017-05-04 | 2018-01-30 | 江西省农业科学院农业工程研究所 | No-tillage rape double-row ditcher suitable for southern rice field |
| CN207182232U (en) * | 2017-09-25 | 2018-04-03 | 张克成 | A kind of computer keyboard |
| CN207639147U (en) * | 2017-12-12 | 2018-07-24 | 吕龙海 | One kind pinch broadcasts wheat seeder |
| CN108432414A (en) * | 2018-04-23 | 2018-08-24 | 汤以骋 | A kind of agricultural planting seeder uniformly sowed |
| CN108834492A (en) * | 2018-06-27 | 2018-11-20 | 芜湖衡西微量计量科技有限公司 | A kind of adjustable crop planting multi-angle movable plough |
| CA2968181A1 (en) * | 2017-05-24 | 2018-11-24 | Bourgault Industries Ltd. | Quick depth adjustment for parallel arm openers |
-
2019
- 2019-01-29 CN CN201910083503.2A patent/CN109819722B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206932607U (en) * | 2017-05-04 | 2018-01-30 | 江西省农业科学院农业工程研究所 | No-tillage rape double-row ditcher suitable for southern rice field |
| CA2968181A1 (en) * | 2017-05-24 | 2018-11-24 | Bourgault Industries Ltd. | Quick depth adjustment for parallel arm openers |
| CN207182232U (en) * | 2017-09-25 | 2018-04-03 | 张克成 | A kind of computer keyboard |
| CN207639147U (en) * | 2017-12-12 | 2018-07-24 | 吕龙海 | One kind pinch broadcasts wheat seeder |
| CN108432414A (en) * | 2018-04-23 | 2018-08-24 | 汤以骋 | A kind of agricultural planting seeder uniformly sowed |
| CN108834492A (en) * | 2018-06-27 | 2018-11-20 | 芜湖衡西微量计量科技有限公司 | A kind of adjustable crop planting multi-angle movable plough |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109819722B (en) | 2021-08-31 |
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